Touch display apparatus

Abstract

A touch display apparatus is disclosed. The touch display apparatus includes a touch display panel, a chip on film (COF) layer and a driving circuit. The touch display panel includes a display module and a touch sensor. The touch sensor is disposed on the display module. The COF layer includes a connecting portion and an extending portion connected to each other. The connecting portion is coupled to the display module and the extending portion is coupled to the touch sensor. The driving circuit is disposed on the COF layer. The driving circuit transmits touch signals with the touch sensor through the COF layer and its extending portion.

What is claimed is: 
     
         1 . A touch display apparatus, comprising:
 a touch display panel, comprising:
 a display module; and 
 a touch sensor, disposed on the display module; 
   a chip-on-film (COF) layer, comprising a connecting portion and an extending portion connected to each other, wherein the connecting portion is coupled to the display module and the extending portion is coupled to the touch sensor; and   a driving circuit, disposed on the COF layer;   wherein the driving circuit transmits touch signals with the touch sensor through the COF layer and the extending portion.   
     
     
         2 . The touch display apparatus of  claim 1 , wherein the touch display panel is an on-cell touch display panel. 
     
     
         3 . The touch display apparatus of  claim 1 , wherein the touch sensor is suitable for mutual-capacitance touch sensing or self-capacitance touch sensing. 
     
     
         4 . The touch display apparatus of  claim 1 , wherein the display module comprises an organic light-emitting diode (OLED) layer. 
     
     
         5 . The touch display apparatus of  claim 1 , wherein the driving circuit is a touch and display driver integration (TDDI) integrated circuit. 
     
     
         6 . The touch display apparatus of  claim 1 , wherein the driving circuit transmits display signals with the display module through the connecting portion of the COF layer. 
     
     
         7 . The touch display apparatus of  claim 1 , wherein a shape of the touch display panel is circular, oval or arcuate. 
     
     
         8 . The touch display apparatus of  claim 1 , wherein a width of the extending portion is smaller than a width of the connecting portion. 
     
     
         9 . The touch display apparatus of  claim 1 , wherein the extending portion extends to the touch sensor from a center of the connecting portion. 
     
     
         10 . The touch display apparatus of  claim 1 , wherein the extending portion extends to the touch sensor from a side of the connecting portion. 
     
     
         11 . The touch display apparatus of  claim 1 , wherein at least one touch trace of the touch sensor passes through the extending portion and the COF layer in order and then coupled to the driving circuit. 
     
     
         12 . The touch display apparatus of  claim 1 , wherein at least one display trace of the display module passes through the connecting portion and the COF layer in order and then coupled to a main flexible printed circuit board. 
     
     
         13 . The touch display apparatus of  claim 1 , wherein at least one display trace of the display module passes through the connecting portion, the COF layer and the driving circuit in order and then coupled to a main flexible printed circuit board. 
     
     
         14 . The touch display apparatus of  claim 1 , wherein the width of the extending portion is 18˜20 um. 
     
     
         15 . The touch display apparatus of  claim 1 , wherein the extending portion comprises a touch sensing pin for coupling to the touch sensor.